Working Advice - Berner BACHD-1 36V Manual De Instrucciones

OBJ_BUCH-2746-001.book Page 21 Wednesday, March 2, 2016 9:47 AM
Position for maximum operating speed
Position for slow start-up and reduced
operating speed
Overload Clutch
 If the tool insert becomes caught or jammed,
the drive to the drill spindle is interrupted. Be-
cause of the forces that occur, always hold the
power tool firmly with both hands and provide
for a secure stance.
 If the power tool jams, switch the machine off
and loosen the tool insert. When switching the
machine on with the drilling tool jammed, high
reaction torques can occur.
Rapid Shut-off (ERC)
The rapid shut-off feature enables better control of
the power tool. The power tool shuts off in case of
sudden and unexpected rotation of the power tool
around the drilling axis.
Rapid shut-off is indicated by flashing of the work-
light 14 on the power tool.
– To restart the machine, release the On/Off
switch and then actuate again.
Temperature Control Indicator
The red LED of the temperature control indicator
19 signals that the battery or the electronics of the
power tool (when the battery is inserted) are not
within the optimum temperature range. In this
case, the power tool will not operate at full capaci-
ty.
Temperature control of the battery:
– The red LED 19 lights up continuously after in-
serting the battery into the charger: The battery
is not within the charging temperature range be-
tween 0 °C and 45 °C and cannot be charged.
– The red LED 19 flashes when you press the 21
button or the On/Off switch 10 (with battery in-
serted): The battery is outside of the permitted
operating temperature range.
– For battery temperatures over 70 °C, the power
tool switches off until the battery is in the optimal
temperature range again.
Temperature control of the power tool electronics:
– The red LED 19 lights up continuously when
pressing the On/Off switch 10: The temperature
of the machine's electronics is below 5 °C or
above 75 °C.
– At a temperature above 90 °C , the electronics of
the power tool switch off until the temperature is
within the allowable temperature range again.
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Working Advice

Adjusting the Drilling Depth (see figure J)
The required drilling depth X can be set with the
depth stop 17.
– Press the button for the depth stop adjustment
15 and insert the depth stop into the auxiliary
handle 16.
The knurled surface of the depth stop 17 must
face downward.
– Insert the SDS-plus drilling tool to the stop into
the SDS-plus tool holder 3. Otherwise, the mov-
ability of the SDS-plus drilling tool can lead to in-
correct adjustment of the drilling depth.
– Pull out the depth stop until the distance be-
tween the tip of the drill bit and the tip of the
depth stop corresponds with the desired drilling
depth X.
Changing the Chiselling Position (Vario-Lock)
The chisel can be locked in 36 positions. In this
manner, the optimum working position can be set
for each application.
– Insert the chisel into the tool holder.
– Turn the mode selector switch 13 to the "Vario-
Lock" position (see "Setting the operating
mode", page 20).
– Turn the tool holder to the desired chiselling po-
sition.
– Turn the mode selector switch 13 to the "chisel-
ling" position. The tool holder is now locked.
– For chiselling, set the rotation direction to right
rotation.
Inserting Screwdriver Bits (see figure K)
 Apply the power tool to the screw/nut only
when it is switched off. Rotating tool inserts can
slip off.
To work with screwdriver bits, a universal bit holder
27 with SDS-plus shank (accessory) is required.
– Clean the shank end of the adapter shank and
apply a light coat of grease.
– Insert the universal bit holder with a turning mo-
tion into the tool holder until it automatically
locks.
– Check the locking effect by pulling the universal
bit holder.
– Insert a screwdriver bit into the universal bit hold-
er. Use only screwdriver bits that match the
screw head.
– To remove the universal bit holder, pull the lock-
ing sleeve 5 toward the rear and remove the uni-
versal bit holder 27 out of the tool holder.
Vibration Damper
The integrated vibration damper reduces occurring
vibrations.
The soft grip handle increases the safety against
slipping off and thus provides for a better grip and
handling of the power tool.
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